According to research in the field of ASD, among the triggers of this disorder have been detected so far "those genetic, environmental or neurobiological; these factors play a key role in the manifestation of behavioral symptoms, the latter being the main element by which TSA is diagnosed in many cases” [12]. The bibliographic resources allowed us to know what are the specific behavioral manifestations of children diagnosed with ASD (and with elements from the ADHD sphere), in order to be able to identify concretely among the primary school students where the experiment was performed all those externalizations of during physical education classes. Research methods used: bibliographic, observational and tabular documentation. Results and Discussions: The application of the initial observation sheet resulted in the aspects described, as indicated in Table 1. Conclusions: Following this detailed analysis, carried out during physical education classes, it emerged that students with special educational needs, respectively those diagnosed with autism spectrum disorders have deviant behavioral manifestations, always disturbing the activities during classes, often disregarding the rules established for the development of classes in optimal conditions; at the same time, these students face difficulties in maintaining and forming connections with their classmates.